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<html lang="zh-CN">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>38随机生成32位的随机数</title>
</head>

<body>

</body>
<script>
  "use strict"; {
    const chars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];
    const getNum = () => {
      let nums = "";
      for (let i = 0; i < 32; i++) {
        nums += chars[parseInt(Math.random() * 61)];
      };
      return nums;
    };
    let res = getNum();
    console.log(`res`, res);
  };
</script>

</html>